ADS7812 低消費電力、シリアル 12 ビット・サンプリング AD コンバータ | TIJ.co.jp

ADS7812 (供給中) 低消費電力、シリアル 12 ビット・サンプリング AD コンバータ

低消費電力、シリアル 12 ビット・サンプリング AD コンバータ - ADS7812
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推奨代替製品

  • ADS8512  -  これはこのデバイスのアップグレード版です。

Special Note

For more information on upgrading to the ADS850X family please follow the link in the upper right hand corner to the Bipolar SAR homepage

概要

The ADS7812 is a low-power, single +5V supply, 12-bit sampling analog-to-digital converter. It contains a complete 12-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.

The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10M). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.

A flexible SPI compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7812 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3" DIP-16 or an SO-16 package.

特長

  • 20µs max CONVERSION TIME
  • SINGLE +5V SUPPLY OPERATION
  • PIN-COMPATIBLE WITH 16-BIT ADS7813
  • EASY-TO-USE SERIAL INTERFACE
  • 0.3" DIP-16 AND SO-16
  • ±0.5LSB max INL AND DNL
  • 72dB min SINAD
  • USES INTERNAL OR EXTERNAL REFERENCE
  • MULTIPLE INPUT RANGES
  • 35mW max POWER DISSIPATION
  • NO MISSING CODES
  • 50µW POWER DOWN MODE
  • APPLICATIONS
    • DATA ACQUISITION SYSTEMS
    • INDUSTRIAL CONTROL
    • TEST EQUIPMENT
    • DIGITAL SIGNAL PROCESSING

Note: Recommended Voltage Reference: REF02 and REF102
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機能一覧

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Part number オーダー・オプション Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
ADS7812 ご注文 12     40     1     SPI     -40 to 85     PDIP | 16
SOIC | 16    
15.93 | 1ku     35     16PDIP: 181 mm2: 9.4 x 19.3 (PDIP | 16)
16SOIC: 77 mm2: 7.5 x 10.3 (SOIC | 16)    
SAR     Single-Ended         Ext
Int    
    10     -10     4.75     5.25     4.75     5.25     0.5     74     -96     Catalog